266411964 has 192 divisors, whose sum is σ = 823689216. Its totient is φ = 65028096.

The previous prime is 266411911. The next prime is 266412001. The reversal of 266411964 is 469114662.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2097669 + ... + 2097795.

It is an arithmetic number, because the mean of its divisors is an integer number (4290048).

Almost surely, 2^266411964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266411964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411844608).

266411964 is an abundant number, since it is smaller than the sum of its proper divisors (557277252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266411964 is a wasteful number, since it uses less digits than its factorization.

266411964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 282 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 266411964 is about 16322.1311108568. The cubic root of 266411964 is about 643.4545971906.

The spelling of 266411964 in words is "two hundred sixty-six million, four hundred eleven thousand, nine hundred sixty-four".